也許問題標題不夠清楚，基本上我有一個從資料庫回傳的關聯陣列陣列，如下所示：
persons = [
[id=>1, name=>adam, hobbyId=>x, hobbyName=> swim],
[id=>2, name=>brian, hobbyId=>y, hobbyName=> read],
[id=>1, name=>adam, hobbyId=>z, hobbyName=> sing]
]
我想將其轉換為 JSON 物件等新樣式，如下所示：
new_persons = [
[id=>1, name=>adam, hobbies => [[hobbyId=>x, hobbyName=> swim],[hobbyId=>z,
hobbyName=> sing]],
[id=>2, name=>brian, hobbies => [[hobbyId=>y, hobbyName=>read]]
]
我試過的：
$new_persons = array();
if (count($persons) > 0) {
foreach ($persons as $item) {
$detail = array(
'id' => $item['id'],
'name' => $item['name'],
'hobbies' => [['hobbyId'=>$item['hobbyId'],'hobbyName'=>$item['hobbyName']]]
);
if (in_array($item['id'], $newArray)) {
array_push($newArray['hobbies'], ['hobbyId'=>$item['hobbyId'],'hobbyName'=>$item['hobbyName']]);
} else {
array_push($newArray, $detail);
}
}
}
但它不符合我的需要，我做錯了什么？謝謝你
uj5u.com熱心網友回復：
$t2 = [];
foreach ($t as $item) {
if (!isset($t2[$item['id']])) {
$t2[$item['id']] = [
'id' => $item['id'],
'name' => $item['name'],
];
}
$t2[$item['id']]['hobbies'][] = [
'hobbyId' => $item['hobbyId'],
'hobbyName' => $item['hobbyName'],
];
}
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